turbine corrected mass flow
turbine corrected mass flow
(OP)
have a question about turbine mass flow.
garrett give turbine maps for their turbos with 'corrected gas turbine flow' against 'pressure ratio'.
what exactly is the corrected mass flow. an equation for correcting the mass flow with temperature and pressure is given. but is it not the volume flow that depends on temp and pressure?
thanks, gareth.
garrett give turbine maps for their turbos with 'corrected gas turbine flow' against 'pressure ratio'.
what exactly is the corrected mass flow. an equation for correcting the mass flow with temperature and pressure is given. but is it not the volume flow that depends on temp and pressure?
thanks, gareth.





RE: turbine corrected mass flow
Aside from that, there is a DIY-Gas Turbines group on Yahoo with some sharp guys. They build gas turbines from (usually) turbochargers.
regards
Jay
Jay Maechtlen
RE: turbine corrected mass flow
where W is mass flow rate (kg/s), T is temperature in K and P is pressure in Bar-A.
This is done for a series of non-dimensional speeds (N/?T), where N is the speed in RPM.
Non-dimensional flows are in fact Mach numbers. Some OEMs prefer to quote the non-dimensional flows in terms of referred or corrected mass flow rate (kg/s). To do this we must refer the mass flow rate to a reference temperature and pressure – usually 288K and 1.013Bar. Now the referred or corrected flow becomes W??/? whose units are kg/s. ?=T/288 and ?=P/1.013. Similarly the referred or correct speed is N/?? and the units are RPM.
Regards
RE: turbine corrected mass flow
Hydrae
RE: turbine corrected mass flow
Regards